Your search resulted in 523 documents. Displaying 25 entries per page.
Optimisation of accelerated weathering procedure as an alternative to natural weathering
2023 - IRG/WP 23-20693
…samples are preconditioned with natural or artificially accelerated weathering methods that simulate naturally occurring factors. This research aims to introduce accelerated weathering, defined in the standard EN 16755 (CEN 2017), to simulate the leaching of biologically active substances from wood. It is…
E Keržič, M Humar, V Vek
Accelerated Weathering Performance of Impregnated Wood Samples Coated with Zinc by Means of Plasma-Assisted Particle Deposition
2016 - IRG/WP 16-30682
…cannot provide a long-term protection of wooden surfaces. Weathering-resistant surfaces can be obtained by applying UV absorbing agents. In this study, the influence of zinc particles applied by a plasma process at atmospheric pressure against UV light was investigated. First, wood samples were impregnated with…
A Can, H Sivrikaya
Fungal resistance and accelerated weathering of Wood-Plastic composites reinforced with Maritime pine wood flour
2016 - IRG/WP 16-40750
…of the elaborated composites was assessed by artificial weathering and fungal decay tests. Results showed that formulation with biocide exhibited low masse losses. Compared with the formulations without UV stabilizers, accelerated weathering resulted in discoloration (E) and slight reduction of the…
M Jebrane, T Fournier, N-E El Bounia, F Charrier-El Bouhtoury
Accelerated weathering and fungal resistance of wood modified with isopropenyl acetate
2016 - IRG/WP 16-40764
…wood surfaces were exposed to UV light source in an accelerated weathering tester to evaluate UV resistance. Anti-swelling efficiency (ASE) and fungal resistance of modified wood were also evaluated. Modified wood showed good ASE. Decay resistance of modified wood was evaluated by exposing unmodified and…
G B Nagarajappa, K K Pandey
Colorimetric evaluation of three tropical woods after accelerated weathering
2014 - IRG/WP 14-20541
…tropical woods used in the furniture industry forward to accelerated weathering. The woods of cumaru (Dipterix odorata), marupá (Simarouba amara) and tauari (Couratari sp.) were selected and fifteen samples of each were produced at dimensions of 5 x 20 x 315 mm (thickness x width x length). The artificial…
R Faustino Teles, A Florian da Costa
Finite Element Modelling of the Checking of Wood Exposed to Accelerated Weathering
2010 - IRG/WP 10-20459
…development of strains in wooden decking boards exposed to accelerated weathering. The model successfully predicts the strains that cause checks to form in decking boards exposed to accelerated weathering. High tension strains develop at the surface of boards, as expected, but we also observe high strains in the rays…
S G Ribarits, P D Evans
Accelerated weathering of nine tropical wood species from Cameroon
2009 - IRG/WP 09-10705
…recent concern and questioning, mainly the resistance to weathering. Weathering resistance of nine tropical species from Cameroon, namely Azobe, Bilinga, Bubinga, Teak, Dousie, Moabi, Musanga, Sipo and Padauk were evaluated using an accelerated weatherometer for 2016 hours. Measurement of moisture fluctuation,…
S Pankras, Jinzhen Cao, D P Kamdem
Standard and accelerated testing of boron-additive wood protection systems
2005 - IRG/WP 05-30381
…standard EN 330 system. The second set up is based on an accelerated test simulating uncoated applications and includes an additional moistening of the jointing area.
After three years of aboveground exposure, boron preservatives are still providing an adequate protection to coated L-joint specimens. Based on the…
A Mohareb, J Van Acker, M Stevens
Durability of surface coating systems. Mycologg - an accelerated mycological test.
2004 - IRG/WP 04-20301
…sample, e.g. coated wooden surfaces is a slow process. Accelerated tests focus on mechanical properties, water uptake or sometimes stain fungi.
Artificially weathered coated panels are not easily compared with naturally aged panels, and show the importance of involving the biological component among the…
L Ross Gobakken, J Mattsson, B Jacobsen, F G Evans
Accelerated weathering test for the evaluation of wood preservative efficacy
2003 - IRG/WP 03-20262
…Tanalith E 3491 and Wolmanit CX-8 have been studied in accelerated weathering experiments.
The weathering experiment was performed by cycles of 2 hours UV-light irradiation followed by water spray for 18 minutes. The changes on the surface of the weathered samples were characterized by FTIR Spectroscopy and…
A Temiz, M Eikenes, Ü C Yildiz, F G Evans, B Jacobsen
Accelerated surface mould testing for exterior wood treatment in Temperate, Tropical and Laboratory environments
2023 - IRG/WP 23-20699
…three locations and reveal interesting possibilities for accelerated test methods, as the results from tropical environment and mould chamber results are ready after approximately two months.
Both the tropical and the mould chamber test can be considered to be an accelerated version of exterior field test in a…
A Nazeri, J Stenbaek, T R Laursen, A H H Wong, B M Hasnul
Development of accelerated decay test for CLT using a fungus grown on agar medium
2019 - IRG/WP 19-20664
…when evaluating its durability of CLT. To develop the accelerated decay test for CLT regarding with the cross sections, we examined the acceleration of deterioration by contacting untreated CLT samples of the dimension 150×150×150 mm with fungus (Fomitopsis palustris) grown in agar medium in plastic container…
T Miyauchi, K Kambara, W Ohmura, T Mori, H Matsunaga, N Hattori
Investigation of Dimensional Stability and Coating Performance of Different Heat-Treated Poplar Wood Before and After Accelerated Aging
2015 - IRG/WP 15-40702
…tremuloioes) in different environments, before and after accelerated aging was studied. Specimens with 150×100×20 mm and 20×20×20 mm in dimensions were prepared. Heat treatments were performed in air, steam and linseed oil media. Specimens were coated by alkyd based stain. Adhesion strength before and after…
A Talaei, D Ansari Movahed, G Rassam
Steam accelerated borate diffusion: Optimizing dry tie treatment
2015 - IRG/WP 15-40713
A small laboratory study was carried out which demonstrated that dry wood dip treated in a high concentration borate solution could not be subsequently treated properly with oil borne copper naphthenate unless it was subsequently steam treated to accelerate bo…
J-W Kim, J D Lloyd
Selection of Wood-Rotting Basidiomycetes for Inoculation of an Accelerated Soil Bed Test
2014 - IRG/WP 14-20543
…of two brown-rot fungi was selected to be used in future accelerated soil bed test experiments to ensure the presence of wood-rotting basidiomycetes in the soil . These were L. pinastri Findlay 141 and F. radiculosa L-7878-Sp. In addition, this unsterile soil-jar test method should be developed into a laboratory…
P I Morris, A Uzunovic, J Ingram
The development of accelerated test systems to evaluate the durability of framing timber
2014 - IRG /WP 14-20547
Various accelerated decay resistance trials including small simulated wall units, samples exposed in enclosed tanks and ‘I’ samples in stacks have been explored and used to test the durability of treated and untreated radiata pine framing at Scion since 2001.…
T Singh, D Page, J van der Waals
Accelerated H3 above-ground decay testing
2013 - IRG/WP 13-20520
…in Australia and one in New Zealand, as well as in two Accelerated Field Simulators. The aim was to find a method that would shorten the time required for evaluating new preservatives and protection systems. One-quarter H3 retentions were installed, as first results suitable for registration occur when these…
L J Cookson, D Page, T Singh
Using an accelerated laboratory method to evaluate Aureobasidium pullulans colonization on painted surfaces and underlying wood substrate
2012 - IRG/WP 12-20480
…painted with acrylic or latex paints. In this study, an accelerated laboratory method developed by Zabel and Horner (1981) was used with modifications to the type of agar used and sample evaluation methods. A study was also carried out with treated pine material to determine if modifications in the preservative…
C Schauwecker, L Burns, A Preston
Testing service life for use class 3: accelerated L-joint performance of commodities
2012 - IRG/WP 12-20500
…has to be linked to performance and service life. An accelerated L-joint test was some 15 years ago developed at the Ghent University to allow worst case assessment under semi-controlled outdoor circumstances. The method allows after 48 months outdoor exposure to differentiate wood species with regard to…
J Van Acker, J Van den Bulcke, I De Windt, L De Vetter
Effect of an antioxidant on the efficacy of organic wood preservatives in an accelerated soil contact decay test
2012 - IRG/WP 12-30583
In comparison to inorganic wood preservatives, organic biocides in transient carriers are considerably less effective when the treated wood is exposed to soil contact. Various oils are used in some formulations with pentachlorophenol to improve the efficacy. H…
D D Nicholas, J Shi, T P Schultz, L Sites
Accelerated L-joint performance testing of organosilicon treated wood
2010 - IRG/WP 10-30551
…These L-joints were prepared and exposed according to the accelerated L-joint method. They were inspected each season for fungal discolouration and removed from the rack after three years outdoor exposure. Subsequently the moisture content, mass loss and decaline uptake were determined. In underlying paper only…
L De Vetter, J Van Acker
Accelerated H3 above-ground decay trials in Australia
2009 - IRG/WP 09-20411
An above-ground H3 fungal field trial was installed at five sites (3 in Australia, 2 in New Zealand), with the aim of finding a method that would shorten the time required for evaluating new preservatives and protection systems. One-quarter of the H3 preservat…
L J Cookson, J Carr
Field Liners as physical barriers to prevent wooden utility pole decay in soil: An accelerated field simulation trial
2008 - IRG/WP 08-20384
…FL’s would work under Australian conditions. An accelerated field simulation trial using posts (with and without Field Liners and/or H1 retentions of ACQ preservative treatment) in fungus-rich soil was conducted in a purpose-designed facility maintained at constant high temperature and humidity. Posts were…
A R Howgrave-Graham, L J Cookson, T Hale
Accelerated fixation of ACQ-D treated Chinese fir with different post-treatments
2008 - IRG/WP 08-40400
…higher relative humidity and circulation conditions accelerated copper fixation in wood. At 70°, 10h hot air post treatment at 80%R.H. with circulation conditions or 100° hot water post treatment for 9h, most of the copper in the treated wood could be fixed in the Chinese fir wood samples. However, for…
Lili Yu, Jinzhen Cao, P A Cooper
Measurement of wood decay by dynamic MOE in an accelerated soil contact test
2008 - IRG/WP 08-20390
…versus dynamic MOE, employing small wood stakes in an accelerated laboratory soil-contact wood decay test. The maximum decay was generally observed close to the center of the stake. An average correlation of 0.884 was observed between the average compression and dynamic MOE strength losses.
Gan Li, D D Nicholas, T P Schultz